TY  - BOOK
AU  - Gardner,Martin
TI  - aha!Gotcha: paradoxes to puzzle and delight
SN  - 0716713616
PY  - 1982///
CY  - New York
PB  - W.H. Freeman and Company
KW  - Mathematical recreations
KW  - Paradox
N1  - Includes bibliographical references and index
ER  -